Sergey Andrianov
2025-Oct-08 13:20 UTC
ControlMaster causes terminal lag on macOS 26.0.1 Tahoe
Hello, I've recently upgraded OpenSSH to 10.1p1 on macOS Tahoe 26.0.1, and noticed an issue with my client configuration: Host * ControlMaster auto ControlPath ~/.ssh/.control-%r@%h:%p ControlPersist 15 When I connect to any host with PTY allocation, the terminal is severely lagging - every character is being typed only after 5 presses. Setting ControlMaster to no removes this problem, same as calling a command using "ssh host my-command", git clone etc. -- Sergey
Stuart Henderson
2025-Oct-08 13:38 UTC
ControlMaster causes terminal lag on macOS 26.0.1 Tahoe
On 2025/10/08 16:20, Sergey Andrianov wrote:> Hello, > > I've recently upgraded OpenSSH to 10.1p1 on macOS Tahoe 26.0.1, and noticed > an issue with my client configuration:This is a known issue, https://marc.info/?l=openssh-unix-dev&m=175982625513497&w=2 https://bugzilla.mindrot.org/show_bug.cgi?id=3872 Fix on the V_10_1 branch and looking at OpenBSD commits it seems likely that a 10.2 release will be along soon fixing this.